CVE-2026-31646

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-04-24. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool()

page_pool_create() can return an ERR_PTR on failure. The return value is used unconditionally in the loop that follows, passing the error pointer through xdp_rxq_info_reg_mem_model() into page_pool_use_xdp_mem(), which dereferences it, causing a kernel oops.

Add an IS_ERR check after page_pool_create() to return early on failure.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

April 24, 2026

Last Modified

April 27, 2026

Advisory Details (5)

Auto-updated Aug 2, 2026
No patch confirmed yet.
generic

net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e63265f188ea39dcf5f546770650027528f3bd0f
generic

net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b5dcb41ba891b55157006cac79825c78a32b409e
generic

net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7caf90d9ab97951a58d1de85ab7e7d7cca7a4513
generic

net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3fd0da4fd8851a7e62d009b7db6c4a05b092bc19
generic

net: lan966x: fix page_pool error handling in lan966x_fdma_rx_alloc_page_pool() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/305832c53551cfbe6e5b81ca7ee765e60f4fe8e9

Vendor Advisories for CVE-2026-31646(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.6.135—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (127 versions)6.19.13-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(13)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 219 total refreshes for this CVE.

  1. 2026-09-13 16:47 UTCEPSS rescore
  2. 2026-09-12 15:01 UTCEPSS rescore
  3. 2026-09-11 14:52 UTCEPSS rescore
  4. 2026-09-10 09:34 UTCEPSS rescore
  5. 2026-09-08 22:00 UTCEPSS rescore
  6. 2026-09-07 16:01 UTCEPSS rescore
  7. 2026-09-06 13:47 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-04 05:06 UTCEPSS rescore
  10. 2026-09-04 03:16 UTCOSV refresh
  11. 2026-09-02 14:11 UTCEPSS rescore
  12. 2026-09-01 13:53 UTCEPSS rescore
  13. 2026-09-01 04:39 UTCEPSS rescore
  14. 2026-09-01 04:39 UTCEPSS rescore
  15. 2026-08-30 19:17 UTCEPSS rescore
  16. 2026-08-30 01:22 UTCEPSS rescore
  17. 2026-08-28 21:41 UTCEPSS rescore
  18. 2026-08-27 14:25 UTCEPSS rescore
  19. 2026-08-26 14:46 UTCEPSS rescore
  20. 2026-08-25 13:49 UTCEPSS rescore
  21. 2026-08-24 14:17 UTCEPSS rescore
  22. 2026-08-23 00:19 UTCEPSS rescore
  23. 2026-08-21 23:49 UTCEPSS rescore
  24. 2026-08-20 22:55 UTCEPSS rescore
  25. 2026-08-20 22:55 UTCEPSS rescore
Show 75 more
  1. 2026-08-19 17:03 UTCEPSS rescore
  2. 2026-08-18 13:48 UTCEPSS rescore
  3. 2026-08-17 14:49 UTCEG score recompute
  4. 2026-08-17 14:49 UTCVendor advisory
  5. 2026-08-17 14:49 UTCGHSA enrichment
  6. 2026-08-17 13:47 UTCEPSS rescore
  7. 2026-08-16 14:56 UTCEPSS rescore
  8. 2026-08-16 05:46 UTCEG score recompute
  9. 2026-08-16 05:46 UTCVendor advisory
  10. 2026-08-16 05:46 UTCGHSA enrichment
  11. 2026-08-16 02:14 UTCEPSS rescore
  12. 2026-08-15 01:30 UTCEPSS rescore
  13. 2026-08-14 04:07 UTCEG score recompute
  14. 2026-08-14 04:07 UTCVendor advisory
  15. 2026-08-14 04:07 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-12 17:48 UTCEG score recompute
  18. 2026-08-12 17:48 UTCVendor advisory
  19. 2026-08-12 17:48 UTCGHSA enrichment
  20. 2026-08-12 13:50 UTCEPSS rescore
  21. 2026-08-11 16:41 UTCEG score recompute
  22. 2026-08-11 16:41 UTCVendor advisory
  23. 2026-08-11 16:41 UTCGHSA enrichment
  24. 2026-08-11 00:00 UTCEPSS rescore
  25. 2026-08-10 12:15 UTCEG score recompute
  26. 2026-08-10 12:15 UTCVendor advisory
  27. 2026-08-10 12:15 UTCGHSA enrichment
  28. 2026-08-09 13:46 UTCEPSS rescore
  29. 2026-08-09 12:38 UTCEG score recompute
  30. 2026-08-09 12:38 UTCVendor advisory
  31. 2026-08-09 12:38 UTCGHSA enrichment
  32. 2026-08-08 16:37 UTCEPSS rescore
  33. 2026-08-08 12:16 UTCEG score recompute
  34. 2026-08-08 12:16 UTCVendor advisory
  35. 2026-08-08 12:16 UTCGHSA enrichment
  36. 2026-08-07 12:34 UTCEG score recompute
  37. 2026-08-07 12:34 UTCVendor advisory
  38. 2026-08-07 12:33 UTCGHSA enrichment
  39. 2026-08-06 13:46 UTCEPSS rescore
  40. 2026-08-05 22:56 UTCEG score recompute
  41. 2026-08-05 22:56 UTCVendor advisory
  42. 2026-08-05 22:55 UTCGHSA enrichment
  43. 2026-08-05 19:17 UTCEPSS rescore
  44. 2026-08-04 15:10 UTCEPSS rescore
  45. 2026-08-04 10:38 UTCEPSS rescore
  46. 2026-08-03 21:01 UTCEG score recompute
  47. 2026-08-03 21:01 UTCVendor advisory
  48. 2026-08-03 21:01 UTCGHSA enrichment
  49. 2026-08-03 10:36 UTCEPSS rescore
  50. 2026-08-02 11:09 UTCEG score recompute
  51. 2026-08-02 11:09 UTCVendor advisory
  52. 2026-08-02 11:09 UTCGHSA enrichment
  53. 2026-08-02 02:27 UTCEPSS rescore
  54. 2026-08-01 04:16 UTCEPSS rescore
  55. 2026-07-30 16:28 UTCEPSS rescore
  56. 2026-07-30 01:30 UTCEPSS rescore
  57. 2026-07-28 15:36 UTCEPSS rescore
  58. 2026-07-26 14:54 UTCEPSS rescore
  59. 2026-07-26 14:54 UTCEPSS rescore
  60. 2026-07-25 14:18 UTCEPSS rescore
  61. 2026-07-25 14:17 UTCEPSS rescore
  62. 2026-07-24 14:17 UTCEPSS rescore
  63. 2026-07-23 14:18 UTCEPSS rescore
  64. 2026-07-23 14:18 UTCEPSS rescore
  65. 2026-07-23 03:08 UTCEG score recompute
  66. 2026-07-22 14:08 UTCEPSS rescore
  67. 2026-07-22 14:08 UTCEPSS rescore
  68. 2026-07-21 15:24 UTCEPSS rescore
  69. 2026-07-21 15:24 UTCEPSS rescore
  70. 2026-07-19 23:08 UTCOSV refresh
  71. 2026-07-19 14:31 UTCEPSS rescore
  72. 2026-07-19 14:31 UTCEPSS rescore
  73. 2026-07-19 02:29 UTCEPSS rescore
  74. 2026-07-18 10:04 UTCEPSS rescore
  75. 2026-07-18 10:04 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-31646?
CVE-2026-31646 is a medium vulnerability published on April 24, 2026. In the Linux kernel, the following vulnerability has been resolved: net: lan966x: fix pagepool error handling in lan966xfdmarxallocpagepool() pagepoolcreate() can return an ERR_PTR on failure. The return value is used unconditionally in the loop that follows, passing the error pointer through…
When was CVE-2026-31646 disclosed?
CVE-2026-31646 was first published in the National Vulnerability Database on April 24, 2026, with the most recent update on April 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31646 actively exploited?
CVE-2026-31646 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-31646?
CVE-2026-31646 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-31646?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31646, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-31646

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